The MR-7 Series LVIT (Linear Variable Inductance Transducer) Position Sensors from Alliance Sensors Group has been designed as an alternative to magnetostrictive sensors and has more robust construction and a lower cost of ownership. The unit can be port mounted in industrial or mobile hydraulic cylinders and pneumatic actuators.
These MR-7 Series sensors are based on a proprietary contactless inductive sensing technology that employs a 7 mm diameter probe with a shorter stroke-to-length ratio than most other technologies, and uses a gun drilled hole in the cylinder rod for sensing the rod position rather than requiring a ring magnet assembly.
An MR-7 has a 1.75 inch (44.5 mm) hex sensor head with a male o-ring port thread, so it can be mounted in the same SAE dash 8 or 18 mm 0-ring port as magnetostrictive sensors. Because they are contactless, MR-7 Series sensors do not wear out and have no output signal deterioration over the life of the sensors, and because it uses an inductive coil, an ME-7 sensor can withstand much greater shock and vibrations than other technologies. A very useful element of the MR-7 sensors is ASG’s proprietary SenSet feature whereby a sensor’s analog output can be adjusted in the field after installation to match the range of motion of the cylinder rod. For more information see the technical data sheet below.
|Series||Output|| Probe |
|Range (mm)|| Port |
|Termination||Output|| Housing |
|E- voltage||7- 7 mm||025||08- 3/4-16||00- 1 m cable||05- 0.5-4.5 VDC||A- Aluminum||08 - 8 mm |
|I- current||050||18- M18||01 - 5-pin M12||06- 4.5-0.5 VDC||S- 300 Series SS||95 - 9.5 mm |
|AS- Alloy Steel|
|075||03 - 5-pin mini 7/8||10- 0-10 VDC||11 - 11 mm |
|CS- Carbon Steel|
|100||11- 10-0 VDC||SS- Stainless Steel|
|125||20- 4-20 mA|
|150||21- 20-4 mA|
|175||50- 0-5 VDC|
|200||51- 5-0 VDC|
|LVIT MR-7 Series datasheet (English)||14/06/2018||776KB|
|LVIT MR-7 Series outline drawing (English)||14/06/2018||489KB|
|MR-7 - Applications overview (English)||14/06/2018||706KB|
|Quick start guide - Installation of port mounting in-cylinder position sensors (English)||14/06/2018||308KB|